Ordinances-1994-185

H. Flood control structural works such as levees, flood walls, etc. shall provide, minimum, protection from a 100-year flood with a minimum of 3 ft. of design freeboard and shall provide for adequate interior drainage. In addition, structural flood control works shall be approved by the Department of Natural Resources. I. Watercourse alterations or relocations must be designed to maintain the flood within the altered or relocated portion. J. Subdivisions (including factory-built home parks and subdivisions) shall be consistent with the need to minimize flood damages and shall have adequate drainage provided to reduce exposure to flood damage. Development associated with subdivision proposals (including the installation of public utilities) shall meet the applicable performance standards of this Ordinance. Subdivision proposals intended for residential use shall provide all lots with a means of access which will be passable by wheeled vehicles during the 100-year flood. Proposals for subdivisions greater than five (5) acres or fifty (50) lots (whichever is less) shall include 100-year flood elevation data for those areas located within the Special Flood Hazard Area. K. Accessory Structures 1. Detached garages, sheds, and similar structures accessory to a residential use are exempt from the 100-year flood elevation requirements where the following criteria are satisfied. a. The structure shall not be used for human habitation. b. The structure shall be designed to have low flood damage potential. c. The structure shall be constructed and placed on the building site so as to offer minimum resistance to the flow of floodwaters. d. The structure shall be firmly anchored to prevent flotation which may result in damage to other structures. e. The structure's service facilities such as electrical and heating equipment shall be elevated or floodproofed to at least one foot above the 100-year flood level. 2. Exemption from the 100-year flood elevation requirements for such a structure may result in increased premium rates for flood insurance coverage of the structure and its contents.